Adjustable template for bent valve stems



Jan. 8, 1935. L. M. LITTLEFIELD ADJUSTABLE TEMPLATE FOR BENT VALVE STEMSFiled Sept. 29, 1952 Ema-KR Q R 28 S w INVENTOR Patented Jan. 8, 1935Anmswmmiemmme i on STEMS" Ghicopee Falls, Mass., assignor; to; A'.Schraders Son,

l Incorporated;

Brooklyn, N. Y., a. corporation ofNcw York Application September 29,1932, Serial No; @Efih 5" for replacement; urposes.

Convertible tire valve stems are made in van- 0115 standard lengths" andare adapted to be piovided with either a. single or acaubletenddepending uponthe typew eei upon which the tire eq ipped with su h valveStemis' to be mounted. Whefe the valve stem is liiovidd with a doulilebend, the bend. nearest the base of, foot portion isiisuallyai'ibro'xir'tiately a right angle, whereasbe of any angie up to bumsusiiany either 3 0 01' 45. The length or the aim ei s'ctiri of the,valve stem between the two/bends, aswu as t e be chose-r1 to meet anyparticular" requirements. where tires length of the inflating end armare supplied on cars, as, original equipment, off course, the valvestems will be can either by the manufacture thereof. Orb'y thetirefna'ker. 1:

tires areto be' reblaced inthefild at service stations,the;cp'nvertiblivalve with which a; n inner tubei isjfitted must be Bentto desired shape,

andfor purpose. suitablevalve. tendjii i jtqq 7 Weedsgl tables of theuse of which.

service:-s' atien operafives. According; to pres'e' ,i teatime. all cor"t'o eroper; SHIfi.

whicirwiirte better i v description, which follows], when; considereddn'ihe terfiplate'or gauge consists of ciated,menibersdesignatedhy therefeifi charactefsAt'Bahd e, which may be formed from t naivehtics'iiv'i fir'dtid At the left: han'd: end of the -member B it is.pro-..

r'. settings. to

decimal e t ce mine-,- ,seem were; which can be stamped. or molded into;proper;- form As: herein ShQWQQ the; memherfo is? in the? m o an.el n e;.sl bSi i f e y fl il menti in the extreme left. hand:columnyrepresent: four;

standard sizes; of convertible; valvestems and the numhersin thehorizontal rowsopposite each: of the vaforementionednumbers; thevertical; column representpoints on avalve bending-tool: at which anadjustable putment may bezset; toengage the valyeinfiating end ot thevalve stem; to I e; peiit; and: thereb ov rn th poi t n said valvesteinat which the bend? between the inflating endarm; .andtheintermediate armof' aw double hent. valve isto-b'e made. a

, The; member 13- ismounted toj sliderubonrthefl member A and gisprovided: with. pins 11' which extend throughmh'egslot a for-guiding\said n'iexn; her in its sliding movements-.- Toi additionally: guidesaidmembers; and; render the: device: more sturdy; a; longitudinalflange b: which. extends fromtthe topedgeo f the member 13 fon'aagreaterportion; of; its length; hearsnpoh: the: top; edge:- a? ofthemBlIlbeljgAl Thegfiang'e' bi? terminates somewhat inwardly from theright handyndiot the member B as shown in the drawing; tuna purpose;which" be pmsentlv made-,1 apparent. l

vided with as pointer 12 for cooperation withtithe'v indici Q39, and' tofacilitate and. render all: of: said indiciai visible for: allsettingssof'the device; the lower leftha-ndyedge ofithe memberrB' iscut' away orcham fered Qff assh0wn 'atvb3; At its right hand end;,theface of. the; member B'zcare ries v alphabetical; indicia barrangedz'in; concene tric arcs for the purpose of compactnessiw said;indicia; being for the; purpose: of v indicating-the 45 setting on the;valve bendingtool' of theianglef of:: the e o tech er-mes; la e csmv irl valv Sfifii W n bing end; a m? a w e ififi ifiiedi'atez-arm, of d adouble ,bent. valve ste;n.;,

' h emb r o i i ete l i lentedl p em member B at the upper right handqgrneirth o through the .med iun .of a pivot pin; 0, provided withsuitable" tehsiohii gi, means for holdingthe; s in anyadjustedipositionto' whichvth "ma I "memheiiqat ber C is provided withand be c whichterfiii:

\ stem} will indicate the setting on the valve tool necessary to producea "valve stem with armsnates in spaced relation to the pivotal axis ofsaid member, and the latter on its front face is provided with ameasuring scale 0 for directly indicating the length of the inflating,end arm of the valve stem to be replaced.

In the use and operation of my template and, au the manner f d p c ti sabent valve, stem in the field from a .convertiblevalve "stem" with whichthe inner tube is normally equipped,"

is as follows:

Let us assume that the double bent valve stem D attached to an innertube 11 which has been rendered useless is to be replacedat a servicestation in the field. The "service station operative, in order todetermine valvestemarms d and d andthe location of the point d at whichthe bend is to be made inthevalve stem,-as-well as the angle of saidbend; applies thetemplate to the valve stem by having the flange orabutment a engage against the flat side of the valve stem arm d, theflange b engage over the arm d, and the flange c engage over the arm d-after which'the member'Bis moved to the right until the end of theflange ,b abuts against the valve stem within the bight of the ,benddtherein. The indicator b will thereupon be found to point to one ofthe-vertical columns of the indicia a and the particular number in saidcolumn in the horizontal row corresponding to the size of the valveequivalent to d and d p-The indicationof the pointerc' upon thealphabetical indicia b informs the operative as to the setting to bemade on the bending toolfor reproducing a bend in the valve stemcorresponding; to that in; the one which is to be replaced; bending toolsettings forduplicating a size 76 ,1 convertible .valve stem are-13- andI;' fora number 7'7 valve stem 18 and I and for a number 78 .valvestem'26 and I. The indicia 0 directly indicates the length of 'the arm dof the valvestem. This latter reading, however, is not so important,since the indicia a indirectlydetermines thisvfact by indicating thesize ofvalve stem'to be used and the distance between the bend d. andthey substantially right angular bend d .l I

. The device is exceedinglysimple in' construc tion, can be cheaply andaccurately manufactured, and its manner of use-can be quickly impartedto any unskilled operative in a service station, therebyobviating-improper bending of convertible valve stems in the field withthe attendant annoyance and inconvenience resulting therefrom, not tomention the intrinsic loss due to rendering valueless valve stems whichare improperly bent at the hands of an'inexperienced operative. l

The invention, it isto be understood, is susceptible of modiflcation'andI therefore-do-not wish to be limited to the details'of constructionherein disclosed, as the same may 'be varied within the range ofmechanical skill-without departing'from the spirit of the invention.

What I claim is;

1. A device of the character described, comprising three relativelymovable members for simultaneously engaging the three arms of a douandcooperating means ble bent tire valve stem, on two of said members forindicating'the angularity of the bend nearer'the inflating end ofthestem and means .for indicating the distance of saidbend from said end. IV r the length of the l Thus in Fig. 3, .the'

the" arms of a double bent valve stem, cooperatingmeans on said firsttwo membersfor indicatingthe'lengthof the intermediate arm of the valvestem, and cooperating means on the third member and one of the other twomembers for indicatingthe angularity of the bend of the valve stem neartheinflating end of the stem.

3. A device of the character described, comprising a pair of memberswhich are slidable relatively to each other, and a third member which ispivotally connected to one of the first two members, abutments .on'.said first mentioned members for engagingthe' jend arms' fof a doublebent valve stem, cooperating 'meansonfsaid first two members forindicating the length of the intermediate arm of the valvestem, anabutment on the third member for engaging the inflating end arm of thevalve stem, and cooperating means on thethird member and one of theother members forindicating the angularity of the bend of the valve'stemnearfthe inflating endof the stern.

j 4. A device of the character described, com-i said members forengaging the footportion end arm of a double bent valve stem, anabutment on the other member adaptedfto engage in the bight of the bendbetween" the inflating end arm and the intermediate arm of the valvestem, and cooperating means on saidmembers for indicate ing the settingto be made on: a valve bending tool for governing thepoint at whichfthebend in the valve stem between the inflating end arm and theintermediate, armis to be'made 5.,A device; of the character described,I comprising a member having indiciathereonarranged in a pluralityofrows, a second member mounted to slide in guided relation on thefirstmember and having indicating means movable withrelation totheindicia on the first member, means on said members for engaging theend arms of a double bent tire valve stem to bring the indicating, meansinto cooperative relation with the indicia, a'third member pivotallyconnected'to the second'member and having means for engaging the,inflating endarm the engaging means on the first and second members arein .engagementwith said stem, and cooperating means on said second andthird members for indicating the an gularityr of the bend the inflatingend arm bending tool and governing the length of the intermediate arm ofthe valve stem to be bent, and;

cooperating means upon the third. member and one of the other membersfor indicating the setting to be made on the aforementioned valvebending tool and governing the angularity of the bend of the valve I mnearer the inflating end of the stem, w v I I abutment on :one of of thevalve stem while-

